---
type: "Bill"
title: "Establishes provisions governing indoor air quality in public schools. (BDR 34-212)"
description: "Establishes provisions governing indoor air quality in public schools. (BDR 34-212)"
jurisdiction: "us/states/nv"
legislature: "Nevada Legislature"
session: "81"
identifier: "AB 257"
citation: "Nevada AB 257 (81)"
classification: ["bill"]
subjects: ["ENERGY", "OFFICE OF", "GRANTS", "SCHOOL BUILDINGS AND GROUNDS", "SCHOOL DISTRICTS", "SCHOOLS", "CHARTER (See also SCHOOLS", "PUBLIC)", "SCHOOLS", "PUBLIC", "SUNSET LEGISLATION"]
status: "enacted"
primary_sponsors: ["Susie Martinez"]
version_count: 6
action_count: 13
vote_count: 0
first_action: "2021-03-12T08:00:00+00:00"
last_action: "2021-06-03T07:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/05071522-d436-43ea-865c-6b5cb969e1d7"
source_url: "https://www.leg.state.nv.us/App/NELIS/REL/81st2021/Bill/7721/Overview"
source_hash: "a45e9c4eebbafc935cab5505fc1a488a2d4b34d3668456b45febc5a8bd559b2f"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-nv"]
---

# Nevada AB 257 (81) — Establishes provisions governing indoor air quality in public schools. (BDR 34-212)

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **As Introduced** (filed) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/AB/AB257.pdf)
2. **Amendment 346** (committee substitute) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/Amendments/A_AB257_346.pdf)
3. **Amendment 499** (committee substitute) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/Amendments/A_AB257_R1_499.pdf)
4. **Reprint 1** (committee substitute) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/AB/AB257_R1.pdf)
5. **Reprint 2** (committee substitute) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/AB/AB257_R2.pdf)
6. **As Enrolled** (enrolled) — [source](https://www.leg.state.nv.us/Session/81st2021/Bills/AB/AB257_EN.pdf)

## Sponsors

- Susie Martinez — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-03-12T08:00:00+00:00** Read first time. Referred to Committee on Education. To printer. `reading-1, referral-committee`
- **2021-03-15T07:00:00+00:00** From printer. To committee.
- **2021-04-02T07:00:00+00:00** Notice of eligibility for exemption.
- **2021-04-19T07:00:00+00:00** From committee: Amend, and do pass as amended. Placed on Second Reading File. Read second time. Amended. (Amend. No. 346.) Dispensed with reprinting. `committee-passage`
- **2021-04-20T07:00:00+00:00** Read third time. Passed, as amended. Title approved, as amended. (Yeas: 26, Nays: 16.) To printer. `passage, reading-3`
- **2021-04-21T07:00:00+00:00** From printer. To engrossment. Engrossed. First reprint. To Senate.
- **2021-04-22T07:00:00+00:00** In Senate. Read first time. Referred to Committee on Education. To committee. `reading-1, referral-committee`
- **2021-05-13T07:00:00+00:00** From committee: Amend, and do pass as amended. `committee-passage`
- **2021-05-14T07:00:00+00:00** Read second time. Amended. (Amend. No. 499.) To printer. `reading-2`
- **2021-05-17T07:00:00+00:00** From printer. To re-engrossment. Re-engrossed. Second reprint. Read third time. Passed, as amended. Title approved, as amended. (Yeas: 12, Nays: 9.) To Assembly. In Assembly. `passage, reading-3`
- **2021-05-26T07:00:00+00:00** Senate Amendment No. 499 concurred in. To enrollment. `passage`
- **2021-05-29T07:00:00+00:00** Enrolled and delivered to Governor. `executive-receipt`
- **2021-06-03T07:00:00+00:00** Approved by the Governor. Chapter 307. `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/05071522-d436-43ea-865c-6b5cb969e1d7`. Confidence: reported (aggregated from official Nevada legislature records).